How do you know if a calm and confident girl is interested?

Anonymous
There are a few girls that I know who can treat and talk to everyone in almost the same way.

They also do things for everyone that usually only a girl who is interested in you would do and doesn't mind going out to dinner with just two people (no, she is not a slut). Compared to shy girls, it's very difficult to tell who they are interested in.

I saw a video where a girl was saying that she was disappointed when a guy she thought was interested in her, found a girlfriend after a few months. She said that she treated all the guys (including her love interest) the same and would go to 1-on-1 dinners with them. The only exception was that she allowed her love interest to touch her.

The other speakers who were there told her that she should have been exclusive otherwise the guy will think that she treats other guys the same way.
How do you know if a calm and confident girl is interested?
3 Opinion